CN201910207U

CN201910207U - High-density full-color LED (light-emitting diode) display plate

Info

Publication number: CN201910207U
Application number: CN2010206186497U
Authority: CN
Inventors: 黄显荣
Original assignee: Apa Electronics Co Ltd
Current assignee: Apa Electronics Co Ltd; APA Electronic Co Ltd
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2011-07-27
Anticipated expiration: 2020-11-22

Abstract

The utility model discloses a high-density full-color LED (light-emitting diode) display plate which comprises a substrate bearing plate; a plurality of luminescent units are arranged on the substrate bearing plate to form a matrix; the luminescent units comprise a driving integrated circuit, a red R chip, a green G chip, and a blue B chip, wherein the red R chip, the green G chip and the blue B chip are connected on the driving integrated circuit. The high-density full-color LED (light-emitting diode) display plate has the advantages that the arrangement space of all the luminescent units can be reduced effectively and the resolution of the display plate can be greatly increased by adopting the high-density matrix structure.

Description

A kind of high density all-colour LED display board

Technical field

The utility model relates to a kind of LED display board, is more particularly a kind of made high density LED display board of stereo-stacking structure that utilizes, and it can be applicable on the various display screens (as TV).

Background technology

Traditional display screen is all and uses iconoscope CRT to make, but iconoscope CRT volume is big and heavy, carrying is difficult for, and the radiation that can produce a large amount when using is its major defect, in recent years along with the progress of science and technology, display screen has been made a leapleap forward from traditional iconoscope CRT and has been the epoch of LCD screen LCD, and the also formal escape of LCD screen LCD goes out the framework of digital watch and counter, shakes the main flow that body becomes display screen technology of new generation.

LCD screen LCD is by the transistor film on the screen, the state of controlling liquid crystal molecule is to reach the purpose of video picture, so even screen size increases, thickness but can not increase, and weight also alleviate than iconoscope CRT screen many, so LCD screen LCD has compact advantage compared with iconoscope CRT; And LCD screen LCD can not produce radiation, only when driving circuit, have a spot of electromagnetic wave, but can't leak, and long service life and power consumption is low, simultaneously with the advantage of environment protecting and power-saving.

In order to make LCD screen LCD can satisfy user's demand further, the LCD screen LCD that releases the LED-backlit kenel is arranged in recent years, its more traditional LCD screen LCD has more energy saving, frivolous volume and the characteristic of high dynamic contrast, color effect is seemingly for fine and smooth more simultaneously, but how to develop a kind of more attaining in perfect display screen, reach aforesaid all types of target further, really must make great efforts target and the direction that research and development break through for relevant dealer.

The various speciality that mirror foregoing liquid crystal screen LCD is arranged use the LED-backlit technology many for LCD screen LCD bonus point really as can be seen, because LED itself has energy saving and compact characteristic, and see through section's technical ability and create Protean photochromic variation.

Doing one with regard to prior art earlier at this explains orally, existing all-colour LED is for can reach versicolor presenting, so in each all-colour LED encapsulating structure, at least include ruddiness R chip, green glow G chip and blue light B chip, to utilize primaries to blend Protean light color, but because the ratio of various photochromic required RGB primaries is all different, so all-colour LED needs external collocation that current limliting electricity group and driver element etc. are arranged in addition, comes to control effectively accurately the trichromatic mixed light ratio of RGB.

Because each all-colour LED all needs circuit such as additional current limliting electricity group and driver element in the prior art, thus can cause and the all-colour LED of adjacency between spacing excessive, make traditional LED display curtain can't well demonstrate careful image.

The utility model content

The purpose of this utility model is to provide a kind of high density all-colour LED display board, thereby improves the density of all-colour LED arranged, and realizes the good careful image that shows.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of high density all-colour LED display board wherein, comprising:

One substrate board, this substrate board is provided with transmission line;

A plurality of luminescence units are arranged and are become a matrix, and this luminescence unit more includes:

One drive integrated circult, this drive integrated circult are fixed on this substrate board, and this drive integrated circult lower edge more is provided with a plurality of links corresponding to this transmission line, and form electric connection with this transmission line;

One ruddiness R chip, this ruddiness R chip is fixed on this drive integrated circult, more forms with this drive integrated circult to electrically connect;

One green glow G chip, this green glow G chip is fixed on this drive integrated circult, more forms with this drive integrated circult to electrically connect; And

One blue light B chip, this blue light B chip is fixed on this drive integrated circult, more forms with this drive integrated circult to electrically connect.

Further, more be provided with a plurality of tie points on this transmission line, this tie point is to should link, and forms with this link and to electrically connect.

Further, more be respectively arranged with a positive electrode and a negative electrode on this ruddiness R, green glow G and the blue light B chip.

Further, the electrode group that this positive electrode and this negative electrode are more corresponding with this drive integrated circult upper limb forms and electrically connects.

Further, this ruddiness R, green glow G and blue light B chip more are welded on this electrode group with an inversion chip form.

Further, also be provided with a soldering projection on this electrode group, this link and this tie point.

Further, this drive integrated circult more is fixed on this substrate board in the mode of a surface mount.

After adopting said structure, the utility model relates to high density all-colour LED display board, owing to include a substrate board, on the substrate board, then be provided with a plurality of luminescence units to become matrix, each luminescence unit then includes drive integrated circult and ruddiness R, green glow G, blue light B chip, ruddiness R, green glow G, blue light B chip are electrically connected with drive integrated circult, so can effectively dwindle the space that each luminescence unit is arranged, highdensity matrix structure more can significantly increase the resolution of display board.

Description of drawings

Fig. 1 is this creation high density all-colour LED display panel structure schematic perspective view;

Fig. 2 is this creation high density all-colour LED display panel structure exploded pictorial (1) figure;

Fig. 3 is this creation high density all-colour LED display panel structure exploded pictorial (2) figure; And

Fig. 4 is this creation high density all-colour LED display panel structure cross-sectional schematic.

Among the figure:

10 substrate boards, 11 transmission lines

12 tie points, 20 drive integrated circults

21 links, 22 electrode groups

31 ruddiness R chips, 32 green glow G chips

33 blue light B chips, 34 positive electrodes

35 negative electrodes, 40 soldering projections.

Embodiment

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

According to high density all-colour LED display board disclosed in the utility model, see also shown in Figure 1ly, it is the perspective view of the utility model high density all-colour LED display board.

The utility model high density all-colour LED display board, this LED display board includes substrate board 10 and a plurality of luminescence unit combines, wherein luminescence unit is arranged on the substrate board 10 thick and fast and forms a matrix, and substrate board 10 is provided with the port of outside contact transmission, in order to receive outside controlling signal and the working power that is transmitted, and be sent to the matrix that whole luminescence unit is formed, each luminescence unit more includes drive integrated circult 20, then weld (die bonding) on the drive integrated circult 20 ruddiness R chip 31 is arranged, green glow G chip 32 and blue

light B chip

33,20 of drive integrated circults are adjusted ruddiness R chip 31 in order to the foundation controlling signal, the mixed light ratio of green glow G chip 32 and blue light B chip 33.

Substrate board 10 can select for use frivolous printing board PCB to make, then lay (Layout) above transmission line 11 is arranged, it is so-called P.e.c., transmission line 11 is on the position corresponding with luminescence unit, then can be by the mode of light shield lithography, form tie point 12, form electric connection to offer the set link 21 of drive integrated circult 20 lower edges, and the link 21 of drive integrated circult 20 lower edges, then include at least: the working power input end, the working power output terminal, the controlling signal input end, the controlling signal output terminal, frenquency signal input end and frenquency signal output terminal etc., the aforementioned structure synoptic diagram please refer to shown in Figure 2, and it is the decomposing schematic representation of the utility model high density all-colour LED display board.

Next please continue to consult shown in Figure 3, another decomposing schematic representation for the utility model high density all-colour LED display board, each luminescence unit of the utility model LED display board, more be provided with ruddiness R chip 31 on outside its drive integrated circult 20, green glow G chip 32 and blue light B chip 33, this ruddiness R chip 31, be respectively arranged with a positive electrode 34 and a negative electrode 35 on green glow G chip 32 and the blue light B chip 33, then be provided with 3 groups of electrode groups 22 on the drive integrated circult 20, respectively with ruddiness R chip 31, on green glow G chip 32 and the blue light B chip 33 just,

negative electrode

34,35 is corresponding, and formation electrically connects, so when drive integrated circult 20 receives controlling signal, then can come ruddiness R chip 31 according to controlling signal, green glow G chip 32 and blue light B chip 33, produce different pressure drops control be mixed into various photochromic.

See also shown in Figure 4 at last, cross-sectional schematic for the utility model high density all-colour LED display board, the utility model is formed in the mode of solid stacked (cascade) as can be seen from Figure, pass through the mode of light shield lithography on the P.e.c. of substrate board 10, form tie point 12, just can electrically connect with the link 21 of drive integrated circult 20 lower edges, wherein tie point 12 can pass through evaporation (evaporation) or the method for metal plating formation soldering projection 40 with link 21, be beneficial to the thermal welding of tie point 12 and link 21, and the electrode group 22 of drive integrated circult 20 upper limbs, also can pass through the evaporation (evaporation) or the method for metal plating equally and form soldering projection 40, and ruddiness R chip 31, green

glow G chip

32 and 33 of blue light B chips can be inverted chip (flip-chip) mode, positive electrode on the chip 34 and negative electrode 35 are directly welded (die bonding) also formation electric connection on electrode group 22, so then can omit routing fully and engage (wire bonding) program, promote the production yield of product.

The utility model high density all-colour LED display board replaces existing routing with the structure of stereo-stacking and engages (wire bonding) program, reduces the spacing between each luminescence unit simultaneously effectively, allows the dynamic image that presents that display board can be careful; Improve the yield of producing for asking, do not violating under the same creation spirit, the utility model more can be selected or set up various material components for use and finish; Auxiliary frame (sub-mount) for example can be set on the substrate board come ccontaining drive integrated circult, or so that the usefulness that alignment mark supplies to produce the machine location to be set, drive integrated circult can select for use the leaderless chip carrier support plate to make or the like again, the arrangement of its various changes and tool equality all is covered by in the patent category of the utility model institute desire application.

The foregoing description and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. a high density all-colour LED display board is characterized in that, comprising:

One substrate board, this substrate board is provided with transmission line;

2. a kind of high density all-colour LED display board as claimed in claim 1 is characterized in that, more is provided with a plurality of tie points on this transmission line, and this tie point is to should link, and forms with this link and to electrically connect.

3. a kind of high density all-colour LED display board as claimed in claim 1 is characterized in that, more is respectively arranged with a positive electrode and a negative electrode on this ruddiness R, green glow G and the blue light B chip.

4. a kind of high density all-colour LED display board as claimed in claim 3 is characterized in that, the electrode group that this positive electrode and this negative electrode are more corresponding with this drive integrated circult upper limb forms and electrically connects.

5. a kind of high density all-colour LED display board as claimed in claim 4 is characterized in that, this ruddiness R, green glow G and blue light B chip more are inverted chip form with one and are welded on this electrode group.

6. a kind of high density all-colour LED display board as claimed in claim 4 is characterized in that, also is provided with a soldering projection on this electrode group, this link and this tie point.

7. a kind of high density all-colour LED display board as claimed in claim 1 is characterized in that this drive integrated circult more is fixed on this substrate board in the mode of a surface mount.